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參數(shù)資料
| 型號： | SQE48T20120-PDB0G |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 240 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, ONE-EIGHTH BRICK PACKAGE-5 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 434K |
| 代理商： | SQE48T20120-PDB0G |
MCD10157 Rev. 1.0, 12-May-10
www.power-one.com
Page 4 of 13
SQE48T20120 DC-DC Converter
36-75 VDC Input; 12 VDC @ 20 A Output
Preliminary Data Sheet
Environment and Mechanical Specifications
Environmental
Operating Humidity
Non-condensing
95
%
Storage Humidity
Non-condensing
95
%
Mechanical
Weight
33.3
Vibration
GR-63-CORE, Sect. 5.4.2
1
g
Shocks
Half Sinewave, 3-axis
50
g
Reliability
MTBF
Telcordia SR-332, Method I Case 1
50% electrical stress, 40°C components
14.3
MHrs
EMI and Regulatory Compliance
Conducted Emissions
CISPR 22 B with external EMI filter network
Operations
Input and Output Impedance
These power converters have been designed to be
stable with no external capacitors when used in low
inductance input and output circuits.
However, in some applications, the inductance
associated with the distribution from the power
source to the input of the converter can affect the
stability of the converter. A 100 F tantalum
capacitor with an ESR < 0.150 across the input is
recommended to ensure stability of the converter
over all operating conditions.
In many end applications, a high capacitance value
is applied to the converter’s output via distributed
decoupling capacitors. The power converter will
exhibit
stable
operation
with
external
load
capacitance up to 10,000 F.
ON/OFF (Pin 2)
The ON/OFF pin is used to turn the power converter
on or off remotely via a system signal. There are two
remote control options available, positive and
negative logic, with both referenced to Vin(-). A
typical connection is shown in Figure A.
Fig. A: Typ. Circuit configuration for ON/OFF function.
The positive logic version turns on when the ON/OFF
pin is at a logic high and turns off when at a logic
low. The converter is on when the ON/OFF pin is left
open. See the Electrical Specifications for logic
high/low definitions.
The negative logic version turns on when the pin is
at a logic low and turns off when the pin is at a logic
high. The ON/OFF pin can be hard wired directly to
Vin(-) to enable automatic power up of the converter
without the need of an external control signal.
The ON/OFF pin is internally pulled up to 5V through
a resistor. A properly de-bounced mechanical switch,
open-collector transistor, or FET can be used to
drive the input of the ON/OFF pin. The device must
be capable of sinking up to 0.2 mA at a low level
voltage of
0.8 V. An external voltage source (±20 V
maximum) may be connected directly to the ON/OFF
input, in which case it must be capable of sourcing or
sinking up to 1 mA depending on the signal polarity.
See the Startup Information section for system timing
waveforms associated with use of the ON/OFF pin.
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| SQE48T30012-NGB0 | 功能描述:DC/DC轉(zhuǎn)換器 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| SQE48T30012-NGB0G | 功能描述:DC/DC轉(zhuǎn)換器 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| SQE48T30012-NGBTG | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 1.2V 30A 8PIN QUARTER-BRICK - Bulk |
| SQE48T30012-PGB0 | 功能描述:DC/DC轉(zhuǎn)換器 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| SQE48T30012-PGB0G | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 1.2V 30A 8PIN QUARTER-BRICK - Bulk |
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